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发明名称
HEATING AND COOLING SYSTEM FOR HORTICULTURAL HOUSES AND CLOCHES
摘要
申请公布号
CA459588(A)
申请公布日期
1949.09.13
申请号
CAD459588
申请日期
申请人
ERIC GODDARD JOHNSON
发明人
ERIC GODDARD JOHNSON
分类号
主分类号
代理机构
代理人
主权项
地址
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